ITERATIVE INVERSION OF DATA FROM SIMULTANEOUS GEOPHYSICAL SOURCES Russian patent published in 2011 - IPC G06F19/00 G01V1/30 

FIELD: information technology.

SUBSTANCE: geophysical survey data are prepared by encoding a group of seismograms of a source, which uses for each seismogram a different encoding signature selected from the non-equivalent encoding signature step. Then, the encoded seismograms are summed by summing all traces corresponding to the same receiver from each seismogram, resulting in a synchronously encoded seismogram. The simulation steps needed for inversion are then calculated using a particular assumed model of velocity or other physical property and synchronously activated encoded sources using the same encoding scheme used on the measured data. The result is an updated physical properties model which may be further updated by conventional iterations.

EFFECT: faster calculations, needed for iterative inversion of geophysical data, owing to use of simulation of synchronously encoded sources at steps for simulating the inversion process.

23 cl, 10 dwg